Rock Solid Knowledge Ltd company overview
Rock Solid Knowledge Ltd is a private limited company registered with company number 06811209. It was incorporated on 5 Feb 2009 and its current status is active.
The registered office is at Gladstone House Hithercroft Road, Wallingford, Oxfordshire, OX10 9BT. The company has 4 active officers.
Rock Solid Knowledge Ltd upcoming deadlines
Year end accounts
Due 31 Dec 2026
Confirmation statement
Due 19 Feb 2027
Corporation tax payment
Was due 1 Oct 2026
Dates are the ones Companies House holds for this company. Late accounts trigger automatic Companies House penalties starting at £150, and HMRC charges interest on late corporation tax.
Rock Solid Knowledge Ltd at a glance
17 years
Trading age
6,488 days since incorporation
4
Active officers
Martin, Martin, Richard, Harshavardhan
76
Filings on record
Latest: 4 Nov 2026
100/100
Filing health score
Accounts and statement up to date
Directors of Rock Solid Knowledge Ltd
Former officers
Nature of business (SIC codes)
62020
Information technology consultancy activities
Allowable expenses for Rock Solid Knowledge Ltd
Based on Rock Solid Knowledge Ltd's SIC code (62020), these are typical tax-deductible expenses for a software & it company. Claiming them lowers the profit you pay corporation tax on.
Computers & hardware
Laptops, monitors and devices used for work.
Software subscriptions
Cloud hosting, SaaS tools, licences and domains.
Training & courses
Courses that update skills for your current work.
Working from home
A share of household bills or the £6-a-week flat rate.
Vehicle & mileage
45p a mile for the first 10,000 business miles in a personal car.
Staff & director salaries
Wages, employer NI and pension contributions paid through PAYE.
Accountancy & legal fees
Bookkeeping, year-end accounts, tax advice and company secretarial costs.
Business insurance
Public liability, professional indemnity and employer's liability cover.
Phone & internet
Business mobile contracts, broadband and a share of home internet.
General guidance only — every expense must be wholly and exclusively for business. Ask an accountant
Tax guide for businesses like Rock Solid Knowledge Ltd
How much tax does a software & it company pay?
UK companies pay corporation tax at 19% on profits up to £50,000, rising to 25% above £250,000, with marginal relief in between. Claiming every allowable expense reduces taxable profit.
Does a company like Rock Solid Knowledge Ltd need to register for VAT?
VAT registration is compulsory once taxable turnover passes £90,000 in any rolling 12 months. Many businesses register voluntarily to reclaim VAT on costs.
How much does an accountant cost for a limited company in Oxfordshire?
Fixed-fee accountants typically charge £60–£200 a month for a small limited company, covering year-end accounts, corporation tax and the confirmation statement.
Can directors of Rock Solid Knowledge Ltd pay themselves in dividends?
Most small company directors take a low salary plus dividends. Dividends are paid from profits after corporation tax, with an annual £500 dividend allowance.
Filing history
4 Nov 2026 · PARENT_ACC
Legacy
4 Nov 2026 · GUARANTEE2
Legacy
29 May 2026 · TM01
Termination of appointment of Robin Robert Simon Brohl as a director on 29 May 2026
5 Feb 2026 · CS01
Confirmation statement made on 5 Feb 2026 with updates
6 Jan 2026 · AP01
Appointment of Mr Robin Robert Simon Brohl as a director on 1 Jan 2026
6 Jan 2026 · AP01
Appointment of Mr Harshavardhan Ramanan as a director on 1 Jan 2026
15 Dec 2025 · TM01
Termination of appointment of Andrew Mark Clymer as a director on 15 Dec 2025
13 Nov 2025 · AA
Audit exemption subsiduary accounts made up to 31 Dec 2024
13 Nov 2025 · PARENT_ACC
Legacy
13 Nov 2025 · GUARANTEE2
Legacy
13 Nov 2025 · AGREEMENT2
Legacy
31 Jul 2025 · TM01
Termination of appointment of Darrell Peter Boxall as a director on 31 Jul 2025
18 Jul 2025 · AP01
Appointment of Mr Richard Clancy as a director on 18 Jul 2025
21 May 2025 · CH01
Director's details changed for Mr Martin John Goodwin on 21 May 2025
28 Mar 2025 · TM01
Termination of appointment of Richard Edward Blewett as a director on 28 Mar 2025
19 Mar 2025 · CH01
Director's details changed for Mr Martin John Goodwin on 19 Mar 2025
14 Feb 2025 · AA01
Change account reference date company previous shortened
10 Feb 2025 · CS01
Confirmation statement made on 5 Feb 2025 with updates
24 Dec 2024 · TM01
Termination of appointment of Claire Rollins as a director on 24 Dec 2024
3 Dec 2024 · TM02
Termination of appointment of Richard Edward Blewett as a secretary on 28 Nov 2024
Showing the latest 20 of 76 filings. See the full history on Companies House
Accounting services for Rock Solid Knowledge Ltd
From tax to payroll, find accountants who look after every part of Rock Solid Knowledge Ltd’s finances.
Year-end accounts
Statutory accounts prepared and filed with Companies House on time, every year.
Corporation tax
CT600 returns filed with HMRC and tax planned so you only pay what you owe.
Payroll
Pay your team on time every month, with RTI submissions and pensions handled.
VAT & bookkeeping
Keep your books tidy and your VAT returns MTD-ready all year round.
Confirmation statement
Your annual confirmation statement checked and filed before the deadline.
Management accounts
Monthly or quarterly reports so you can see how the business is really doing.
More about Rock Solid Knowledge Ltd
About Rock Solid Knowledge Ltd
Rock Solid Knowledge Ltd is a UK private limited company based in Oxfordshire, registered at Companies House as company number 06811209 since 5 Feb 2009. Its listed activities include information technology consultancy activities. This page brings together its public record — directors, registered office, nature of business and filing history — in one easy place.
Rock Solid Knowledge Ltd filings and compliance
Every UK limited company must file annual accounts, a confirmation statement and a corporation tax return each year. Rock Solid Knowledge Ltd has 76 filings on record. Keeping on top of these deadlines avoids automatic penalties from Companies House and HMRC, which start at £150 for late accounts.
Looking for an accountant in Oxfordshire?
Businesses like Rock Solid Knowledge Ltd often use a local accountant for year-end accounts, corporation tax, VAT and payroll. Compare fixed-fee, regulated accountants near Oxfordshire and get free quotes in minutes.
This page shows public information from Companies House. Director of Rock Solid Knowledge Ltd?
Rock Solid Knowledge Ltd – frequently asked questions
What is the company number of Rock Solid Knowledge Ltd?
Rock Solid Knowledge Ltd is registered at Companies House under company number 06811209.
When was Rock Solid Knowledge Ltd incorporated?
Rock Solid Knowledge Ltd was incorporated on 5 Feb 2009 as a private limited company.
Who are the directors of Rock Solid Knowledge Ltd?
Current officers are Martin Goodwin (secretary), Martin Goodwin (director), Richard Clancy (director) and Harshavardhan Ramanan (director).
What does Rock Solid Knowledge Ltd do?
The company's registered nature of business (SIC) is 62020 – Information technology consultancy activities.
Where is Rock Solid Knowledge Ltd registered?
The registered office address is Gladstone House Hithercroft Road, Wallingford, Oxfordshire, OX10 9BT.
Is Rock Solid Knowledge Ltd still trading?
According to its latest Companies House record the company status is active. Its most recent filing was legacy on 4 Nov 2026.